Answers are beginning to emerge about what caused a mysterious oil spill that has stained Brazil's coastline for the last month.
Officials in the country say a Greek-flagged tanker is likely to be behind it.
Police in Rio de Janeiro raided the headquarters of a company that was linked to the marine vessel.
The spill has affected marine life in more than 2,500 km of the country's beaches and coastlines.

Hezbollah warns Israeli residents to evacuate towns near border
US House rejects war powers resolution, backs Trump on Iran war
Saudi Arabia, Qatar, Kuwait intercept drones targeting territory
GCC and EU ministers urge immediate halt to Iranian attacks
India's tech state Karnataka bans social media for children under 16
Indonesia says it will withdraw from Board of Peace if it does not benefit Palestinians
Trump wants say on Iran's next leader
US, Venezuela agree to re-establish diplomatic ties
